Mayo MN diagnosed my gastroparesis some 5 years ago.. I saw the dietitian there as well. The gave me a way to cope with this condition that never goes away... My Post operative condition was caused be injury to the nerves that control stomach emptying.. As a coincidence my ethnicity is Norwegian... we drink coffee... neither the doctor nor the dietitian told me to cut out the coffee.. I only have 2 cups a day in the morning. Even though I ate yogurt before gastroparesis I cannot eat it or the yogurt based protein drinks like Ensure... as my eating log indicated a connection with diarrhea .. I eat fruits and non leafy vegetables.. I snack on a trail mix of nuts, dried fruit, and peanut M&Ms....